A Brooklyn woman bid a chilling farewell to her live-in boyfriend before twice plunging a knife into his neck.

"You can die," she told him, according to police sources. "I don't want you anymore."

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Octavia Elliott, 31, confessed to slipping on a pair of latex gloves and killing Ramel Patterson, her boyfriend of eight months. Patterson, 33, was found mortally wounded at their apartment in the Roosevelt Houses in Bedford-Stuyvesant around 3:30 a.m. Sunday.

Victim Ramel Patterson was just 33 years old. (Facebook/New York Daily News)

When cops arrived at the fifth-floor apartment and tried to calm Elliott down, the mentally ill woman told them, "I killed him," according to police sources.

She also told the officers about the gloves and the knife, which she put in a box and tossed out the window. Police recovered both near the scene.

An evidence marker is set up next to the knife that was recovered at the scene. (Theodore Parisienne/for New York Daily News)

Records show the confessed killer has a checkered criminal history, with 10 arrests in New York City alone. She's been charged with assault twice before — in 2013 for stabbing her child's father in the face, back and hand with a screwdriver and in 2007 for smashing a Colt 45 malt liquor bottle over a man's head.

Three of Elliott's relatives were in the courtroom at her arraignment in Brooklyn Criminal Court Monday. One woman, who didn't identify herself, cried throughout the appearance.

Patricia Scott, the victim’s mother, cries as she stands in front of her deceased son’s motorcycle on Sunday. (Theodore Parisienne/for New York Daily News)

"The defendant stayed in the same apartment as the deceased with his grandmother," Assistant District Attorney Wilfredo Cotto said.